K&N BM-0400 Videos:
K&N BM-0400 | K&N Replacement Air Filter - BM-0400
$129.40
REG $148.81;
SPECIAL ORDER (Estimated Ship Date: 4 - 8 Weeks)
UpdatedOn: 5/13/2026 12:00:00 AM
K&N Product Expert is nline !
FOUND A LOWER PRICE? We'll Beat Any Lower Price You Find!
Some Condition Applies*
K&N BM-0400 application specs:
Attributes
- Air Filter Material: Cotton Gauze
- Filter Re-Oiling Amount: 0.52 oz (15 ml)
- Inner Wire: No
- Item Type: High Performance
- Outside Diameter: 4.375 in (111 mm)
- Product Style: Round Air Filter
- Warranty: No-Hassle Lifetime Limited
- Air Filter Shape: Round
- Package Material: Paperboard
- Weight: 0.6 lb (0.3 kg)
- Flanges: None
- Top Material: None
- Frame Design: Flexible
- Height: 3.375 in (86 mm)
- Inside Diameter: 3 in (76 mm)
- Oil Included: Yes
- Package Contents: 1 Air Filter
- Package Quantity: 1
- Package Type: Box
- Pre-Screened: No
- Top Style: Open
- Washable: Yes
Product Description
K&N's high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom engineered to fit your specific application and are designed to provide low restriction and increased performance, while providing excellent engine protection for your motorcycle.Features & Benefits
- Application specific base seal and sealing bead
- Designed to provide increased horsepower and torque
- No-Hassle Lifetime Limited Warranty
- Washable & reusable, pre-oiled and ready to ride!
- Made in the USA for over 40 years
- Multiple layers of woven cotton gauze media offers excellent filtration
- Pleated media provides a large filtration area offering long service intervals
Learn More about






